html {
    line-height: 1.15; /* 1 */
    -webkit-text-size-adjust: 100%; /* 2 */
}

body {
    margin: 0;
}

main {
    display: block;
}

h1 {
    font-size: 2em;
    margin: 0.67em 0;
}

p {
    margin: 0;
}

a {
    background-color: transparent;
}

img {
    border-style: none;
}

@font-face {
    font-family: "Open Sans";
    src: url("../asset/OpenSans-Regular.ttf");
}

html {
    height: 100%;
}

body {
    background: #fff;
    color: #222;
    font-size: 22px;
    font-family: "PingFang SC", "Open Sans", serif, sans-serif;
    font-weight: 400;
    font-style: normal;
    height: 100%;
}

.app {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: -40px;
}

footer {
    flex: 0;
    padding-bottom: 80px;
}

main > img {
    width: 400px;
}
main > p {
    margin-top: 120px;
    line-height: 30px;
    color: #0780eb;
    text-align: center;
    padding-left: 24px;
    padding-right: 24px;
}

footer > a {
    text-align: center;
    color: #000;
    text-decoration: none;
}

@media (max-width: 1439px) {
    main {
        max-width: 900px;
    }
}

@media (max-width: 599px) {
    body {
        font-size: 16px;
    }

    main {
        min-width: 400px;
        margin-top: -100px
    }

    main > img {
        width: 300px;
    }

    main > p {
        margin-top: 100px;
    }
}